52 lines
2.7 KiB
ArmAsm
52 lines
2.7 KiB
ArmAsm
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/*-*- mode:asm; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/macros.h"
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.yoink __FILE__
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/ Allocates aligned memory the POSIX way.
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/
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/ Allocates a chunk of n bytes, aligned in accord with the alignment
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/ argument. Differs from memalign only in that it (1) assigns the
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/ allocated memory to *pp rather than returning it, (2) fails and
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/ returns EINVAL if the alignment is not a power of two (3) fails and
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/ returns ENOMEM if memory cannot be allocated.
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/
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/ @param rdi is void **pp
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/ @param rsi is size_t align
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/ @param rdx is size_t size
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/ @return eax
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posix_memalign:
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jmp *hook$posix_memalign(%rip)
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.endfn posix_memalign,globl
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.initbss 800,_init_posix_memalign
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hook$posix_memalign:
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.quad 0
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.endobj hook$posix_memalign,globl,hidden
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.previous
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.init.start 800,_init_posix_memalign
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.hidden dlposix_memalign
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ezlea dlposix_memalign,ax
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stosq
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.init.end 800,_init_posix_memalign
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yoink free
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